市场上出售的黄瓜属于生物的 [ ]
A．营养器官
B．营养组织
C．生殖器官
D．保护组织
答案：C
As a young man, he ________ many social activities and later _______ the Party.
A．took part in; joined
B．took part in ; joined in
C．joined in; took part in
D．joined; took part
关于汉族迁入其他地区，下列哪一项不是发生近代？（）
A.闯关东
B.走西口
C.迁台湾
D.湖广填四川
